ABUDAWUD 1647:
from Āstaʿmalanī —
Umar employed me to collect the sadaqah. When I finished doing so and gave it to him, he ordered payment to be given to me. I said: I did only for Allah’s sake, and my reward will come from Allah. He said: Take what you are given, for I acted (as a collector) during the time of the Messenger of Allah (May peace be upon him) and he assigned me a payment. Thereupon, I said the same kind of thing as you have said, to which Messenger of Allah (May peace be upon him) said: When you are given something without asking for it, you should use it for your own purpose and as sadaqah.
أبو داود ١٦٤٧:
عن استعملني —
اسْتَعْمَلَنِي عُمَرُ ؓ عَلَى الصَّدَقَةِ فَلَمَّا فَرَغْتُ مِنْهَا وَأَدَّيْتُهَا إِلَيْهِ أَمَرَ لِي بِعُمَالَةٍ فَقُلْتُ إِنَّمَا عَمِلْتُ لِلَّهِ وَأَجْرِي عَلَى اللَّهِ قَالَ خُذْ مَا أُعْطِيتَ فَإِنِّي قَدْ عَمِلْتُ عَلَى عَهْدِ رَسُولِ اللَّهِ ﷺ فَعَمَّلَنِي فَقُلْتُ مِثْلَ قَوْلِكَ فَقَالَ لِي رَسُولُ اللَّهِ ﷺ إِذَا أُعْطِيتَ شَيْئًا مِنْ غَيْرِ أَنْ تَسْأَلَهُ فَكُلْ وَتَصَدَّقْ
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